It worked very well in the beginning, but not sure what happened. It's not that it doesn't save my tabs, it's that when I go to the tab where all the tabs are saved, it infinitely loops trying to bring them up. Sometimes it works if I leave it open long enough, but it's mostly miss than hit. It's a shame cause I really liked this add-on, but it hasn't been updated since mid 2022. Could be abandoned, steer clear if you hope for any support or updates.